async Task AuthenticateCleartext(bool async, CancellationToken cancellationToken)
{
var passwd = Settings.Password;
if (passwd == null)
{
// No password was provided. Attempt to pull the password from the pgpass file.
var matchingEntry = PgPassFile.LoadDefaultFile()?.GetFirstMatchingEntry(Settings.Host, Settings.Port, Settings.Database, Settings.Username);
if (matchingEntry != null)
{
Log.UsingPgpassFile();
passwd = matchingEntry.Password;
}
}
if (passwd == null)
{
throw new NpgsqlException("No password has been provided but the backend requires one (in cleartext)");
}
await PasswordMessage
.CreateClearText(passwd)
.Write(WriteBuffer, async, cancellationToken);
await WriteBuffer.Flush(async);
await ReadExpecting <AuthenticationRequestMessage>(async);
}
async Task AuthenticateMD5(string username, byte[] salt, bool async)
{
var passwd = Settings.Password;
// No password was provided. Attempt to pull the password from the pgpass file.
if (passwd == null)
{
var matchingEntry = PgPassFile.Load(Settings.Passfile)?.GetFirstMatchingEntry(Settings.Host, Settings.Port, Settings.Database, Settings.Username);
if (matchingEntry != null)
{
Log.Trace("Taking password from pgpass file");
passwd = matchingEntry.Password;
}
}
if (passwd == null)
{
throw new NpgsqlException("No password has been provided but the backend requires one (in MD5)");
}
await PasswordMessage
.CreateMD5(passwd, username, salt)
.Write(WriteBuffer, async);
await WriteBuffer.Flush(async);
await ReadExpecting <AuthenticationRequestMessage>(async);
}
public void TestPasswordMessageCreateMd5()
{
var salt = new byte[] { 0x77, 0x16, 0x3e, 0xe3 };
var authMessage = new AuthenticationMessage {
AuthenticationMessageType = AuthenticationMessageType.MD5Password,
DataBuffer = salt
};
var state = PostgresClientState.CreateDefault();
var connectionString = new PostgresConnectionString(
PostgresServerInformation.FakeConnectionString);
var passwordMessage = PasswordMessage
.CreateMd5(authMessage, state, connectionString);
const string expectedHash = "md583ce447ce89d7e4e943205ff8f82f76a";
try
{
var actualHash = Encoding.ASCII.GetString(
passwordMessage.Password, 0,
passwordMessage.PasswordLength);
Assert.AreEqual(0x23, passwordMessage.PasswordLength);
Assert.AreEqual(expectedHash, actualHash);
}
finally
{
authMessage.TryDispose();
passwordMessage.TryDispose();
}
}
private void LoginPassword_PasswordChanged(object sender, RoutedEventArgs e)
{
//var dvm = SimpleIoc.Default.GetInstance<LoginViewModel>()
var pm = new PasswordMessage {
Password = ((PasswordBox)sender).Password
};
Messenger.Default.Send <PasswordMessage>(pm);
}
private void PasswordMessageHandler(INetworkConnection conn, PasswordMessage msg)
{
if (msg.password == authPassword)
{
conn.Send(new AcceptPasswordMessage()
{
allowed = true
});
base.OnServerAuthenticate(conn);
}
}
async Task AuthenticateCleartext(bool async, CancellationToken cancellationToken)
{
var passwd = GetPassword();
if (passwd == null)
{
throw new NpgsqlException("No password has been provided but the backend requires one (in cleartext)");
}
await PasswordMessage
.CreateClearText(passwd)
.Write(WriteBuffer, async, cancellationToken);
await WriteBuffer.Flush(async);
await ReadExpecting <AuthenticationRequestMessage>(async);
}
async Task AuthenticateMD5(string username, byte[] salt, bool async, CancellationToken cancellationToken)
{
var passwd = GetPassword();
if (passwd == null)
{
throw new NpgsqlException("No password has been provided but the backend requires one (in MD5)");
}
await PasswordMessage
.CreateMD5(passwd, username, salt)
.Write(WriteBuffer, async, cancellationToken);
await WriteBuffer.Flush(async);
await ReadExpecting <AuthenticationRequestMessage>(async);
}
private void Authenticate(AuthenticationMessage authenticationMessage)
{
PasswordMessage passwordMessage;
switch (authenticationMessage.AuthenticationMessageType)
{
case AuthenticationMessageType.MD5Password:
passwordMessage = PasswordMessage.CreateMd5(
authenticationMessage, ClientState,
PostgresConnectionString);
break;
default:
throw new ArgumentOutOfRangeException(
nameof(authenticationMessage.AuthenticationMessageType),
authenticationMessage.AuthenticationMessageType,
"Authentication method not supported.");
}
using (passwordMessage)
{
WriteMessage(passwordMessage);
}
}
private void HandlePasswordMessage(PasswordMessage msg)
{
this.Password = msg.Password;
}
internal GSSPasswordMessageStream(NpgsqlConnector connector)
{
_connector = connector;
_msg = new PasswordMessage();
}
